https://www.khanacademy.org/science/3rd-grade-science-matatag/x54502edf5ba25683:3rd-quartere/x54502edf5ba25683:lesson-1/v/net-force 2024-01-04T21:41:56.674101033Z Net force Forces can accelerate an object. When equal forces push an object in opposite directions, they cancel each other out, and the object doesn't move. But when an additional force is added in one direction, the object starts to accelerate in that direction. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/a1b2088c-719e-47d9-b51c-916f8a5b634b_1280_720_base.png Net force Forces can accelerate an object. When equal forces push an object in opposite directions, they cancel each other out, and the object doesn't move. But when an additional force is added in one direction, the object starts to accelerate in that direction. https://cdn.kastatic.org/ka-youtube-converted/fwDWJZkrtUE.mp4/fwDWJZkrtUE.mp4 191 Push and pull https://www.khanacademy.org/science/in-in-class11th-physics/in-in-class11th-physics-laws-of-motion/in-in-class-11-newtons-first-law-mass-and-inertia/e/newtons-first-law-exercises-ap1 2026-03-25T13:20:47.939559562Z Net force and acceleration exercise Practice using Newton's first law to make conclusions about an object's acceleration or the forces on the object.  April Russell exercise https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:forces/x0e04e0cb682fb793:introduction-to-force/v/intro_to_forces_1 2024-06-21T18:55:31.273097146Z Intro to forces (part 1) A force is a push or pull. There are several types, including: applied (from person or machine), tension (from string or cable), gravity (between masses), normal (perpendicular to surface), friction (moving across a surface), thrust (from pushing something the other way), drag (resistance from air or other fluid), buoyancy (from displacing a fluid), and lift (on wings moving through air). Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/a746e5dc-cec7-4c2e-aec0-89d387ffc5f3_1280_720_base.png Intro to forces (part 1) A force is a push or pull. There are several types, including: applied (from person or machine), tension (from string or cable), gravity (between masses), normal (perpendicular to surface), friction (moving across a surface), thrust (from pushing something the other way), drag (resistance from air or other fluid), buoyancy (from displacing a fluid), and lift (on wings moving through air). https://cdn.kastatic.org/ka-youtube-converted/92Adbb6geHE.mp4/92Adbb6geHE.mp4 598 Push and pull https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:forces/x0e04e0cb682fb793:introduction-to-force/e/understand-forces 2026-05-17T17:10:34.504190576Z Understand: Forces Check your understanding of forces in this set of free practice questions. Emily Cizmas exercise https://www.khanacademy.org/science/physics/forces-newtons-laws/newtons-laws-of-motion/v/balanced-and-unbalanced-forces 2024-01-16T04:11:35.384208864Z Balanced and unbalanced forces When forces in a particular dimension cancel each other out, they're balanced and result in zero net force. When forces in a particular dimension do not cancel each other out, they're unbalanced and result a nonzero net force. Explore balanced and unbalanced forces through five different scenarios involving a rock and various forces acting on it. Sal Khan video https://cdn.kastatic.org/googleusercontent/LKDY3C-4WFq-cacjqiG2MkgbIId1gEwcyHvTCgoYWUDPZf7sCOJcm_TQCqRY_5MGQYYZlm3ghv_6hChW92cCYH74 Balanced and unbalanced forces When forces in a particular dimension cancel each other out, they're balanced and result in zero net force. When forces in a particular dimension do not cancel each other out, they're unbalanced and result a nonzero net force. Explore balanced and unbalanced forces through five different scenarios involving a rock and various forces acting on it. https://cdn.kastatic.org/ka-youtube-converted/oNgo9bbDi7Q.mp4/oNgo9bbDi7Q.mp4 491 Push and pull https://www.khanacademy.org/science/in-in-class9th-physics-india/in-in-force-laws-of-motion/in-in-newtons-first-law/v/balanced-unbalanced-forces 2021-04-06T14:32:18Z Balanced & unbalanced forces Lets use real life examples and study balanced and unbalanced forces. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/xTvWFpvFRN-V_KvCH9_FQ6r7udCAPRVPebKj8aXLCPMPD8det6BkD7uoh-Q26vzAzjZYKyV04PxriMMLGuscm1c Balanced & unbalanced forces Lets use real life examples and study balanced and unbalanced forces. https://cdn.kastatic.org/ka-youtube-converted/CGdC5eZprW4.mp4/CGdC5eZprW4.mp4 678 Push and pull https://www.khanacademy.org/computing/pixar/effects/particle-physics/e/net-forces 2021-06-05T01:50:11Z Net forces Understand how to sum forces to find the net force on a particle Peter Collingridge exercise https://www.khanacademy.org/science/highschool-physics/x6679aa2c65c01e53:motion-and-forces/x6679aa2c65c01e53:forces/e/apply-net-force 2026-05-17T17:10:34.504190576Z Apply: Net force Apply your knowledge of net force in this set of free practice questions. Emily Cizmas exercise